[medvezhenok]

I think that's part of it, and part of it is that we curate real-life interactions a lot more than online. There are plenty of places I would never show up to / people I wouldn't talk to in real life (precisely because they would be the sort of people who troll online).

Whether that filtering is done explicitly or implicitly (i.e. neighborhood wealth)

[worthless-trash]

Thanks for highlighting that point, the geopolitical filter,along with 'physical availability' (as you stated) are likely larger contributing factors than I had initially considered.